销售：一般来讲，任何人只要是公司的收入来源，他都会安全，所以销售人员——特别是在抗衰退行业——几乎不用担心。
Sales: As a general rule, anyone who is a source of income for a company will be safe, so salespeople - especially in recession-proof industries - have little to worry about.
类型推断帮助你自动推断类型签名，所以用户不用人工提供一般的类型信息。
Type inference helps by automatically inferring type signatures, so that the user doesn't have to provide trivial type information manually.
但我想对那些人说：没错，有些野生动物的确很危险，但它们一般多在远离人类的地方，所以我们不用害怕。
But I want to say to those people: yes, some wild animals is dangerous, but they are generally more away from the humans, so we don't have to fear.
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